UPS (Unified Procedure Step) allows flexible workflow management using a single object to represent both scheduled and performed tasks. It includes features like remote task creation, subscription-based monitoring, and push, pull, and watch workflows. UPS uses a single IOD containing four modules and four SOP classes to manage a worklist in a centralized manner. This provides a more capable replacement for existing modality worklist paradigms.
Big Data Day LA 2016/ Big Data Track - Portable Stream and Batch Processing w...Data Con LA
This talk explores deploying a series of small and large batch and streaming pipelines locally, to Spark and Flink clusters and to Google Cloud Dataflow services to give the audience a feel for the portability of Beam, a new portable Big Data processing framework recently submitted by Google to the Apache foundation. This talk will look at how the programming model handles late arriving data in a stream with event time, windows, and triggers.
Proof of Concept with Real Application Testing 12cLuis Marques
Evaluate how certain real world database workload behaves on different I/O subsystem, processors and
architecture or the coexistence with other databases is the goal of a Proof of Concept. The need of testing
real production workloads to eliminate uncertainty with help of techniques like Workload Folding, Time
Shifting and Schema Remapping, this talk will produce evidence that exploring Real Application Testing
features in 12c leverage what can be accomplished by a Proof of Concept.
A discussion of Erlang/OTP, based on the "A History of Erlang" paper, with the addition of covering some of the methods used in the paper that enable Riak to be a highly reliable, distributed datastore, while leveraging the work of giants.
Big Data Day LA 2016/ Big Data Track - Portable Stream and Batch Processing w...Data Con LA
This talk explores deploying a series of small and large batch and streaming pipelines locally, to Spark and Flink clusters and to Google Cloud Dataflow services to give the audience a feel for the portability of Beam, a new portable Big Data processing framework recently submitted by Google to the Apache foundation. This talk will look at how the programming model handles late arriving data in a stream with event time, windows, and triggers.
Proof of Concept with Real Application Testing 12cLuis Marques
Evaluate how certain real world database workload behaves on different I/O subsystem, processors and
architecture or the coexistence with other databases is the goal of a Proof of Concept. The need of testing
real production workloads to eliminate uncertainty with help of techniques like Workload Folding, Time
Shifting and Schema Remapping, this talk will produce evidence that exploring Real Application Testing
features in 12c leverage what can be accomplished by a Proof of Concept.
A discussion of Erlang/OTP, based on the "A History of Erlang" paper, with the addition of covering some of the methods used in the paper that enable Riak to be a highly reliable, distributed datastore, while leveraging the work of giants.
Dicoding Developer Coaching #18: Android | Membuat Aplikasi Pengingat dengan ...DicodingEvent
Dicoding Developer Coaching merupakan webinar, yang membahas tuntas kendala maupun pertanyaan yang sering ditanyakan di Academy Dicoding.
Tema kali ini adalah "Membuat Aplikasi Pengingat dengan Menggunakan Alarm dan Scheduler."
Di sini Anda akan mempelajari komponen Alarm Manager. Komponen ini berguna ketika kita ingin membuat aplikasi yang memiliki fungsi pengingat (reminder), jadwal tayang film di bioskop, atau bisa digunakan untuk membuat aplikasi alarm dan proses yang ingin dijalankan di waktu tertentu.
MCRL2 by kashif khan
kashif.namal@gmail.com
Master in Computer Science University of Camerino italy
Bachelor in Software Engineering University of Bradford UK
Pointer Events Working Group update / TPAC 2023 / Patrick H. LaukePatrick Lauke
Update about Pointer Events Level 3 work for the upcoming W3C Technical Plenary and Advisory Committee (TPAC) 2023 in Seville
https://www.youtube.com/watch?v=r0spZl1qaa0
https://w3c.github.io/pointerevents/
https://www.w3.org/TR/pointerevents/
https://www.w3.org/2023/09/TPAC/
https://patrickhlauke.github.io/touch/w3c_tpac2023_pewg/
Cross-posted from https://www.w3.org/2023/09/TPAC/group-updates.html#pointer-events
A dive into akka streams: from the basics to a real-world scenarioGioia Ballin
Reactive streaming is becoming the best approach to handle data flows across asynchronous boundaries. Here, we present the implementation of a real-world application based on Akka Streams. After reviewing the basics, we will discuss the development of a data processing pipeline that collects real-time sensor data and sends it to a Kinesis stream. There are various possible point of failures in this architecture. What should happen when Kinesis is unavailable? If the data flow is not handled in the correct way, some information may get lost. Akka Streams are the tools that enabled us to build a reliable processing logic for the pipeline that avoids data losses and maximizes the robustness of the entire system.
Programming Assignment #2CSci 430 Spring 2019Dates.docxstilliegeorgiana
Programming Assignment #2
CSci 430 Spring 2019
Dates:
Assigned: Monday February 4, 2019
Due: Wednesday February 20, 2019 (before Midnight)
Objectives:
ˆ Explore the Process state models from an implementation point of
view.
ˆ Practice using basic queue data types and implementing in C.
ˆ Use C/C++ data structures to implement a process control block and
round robin scheduling queues.
ˆ Learn about Process switching and multiprogramming concepts.
Description:
In this assignment you will simulate a Three-State process model (ready,
running and blocked) and a simple process control block structure as dis-
cussed in Chapter 3. Your program will read input and directives from a
�le. The input describes a time sequence of events that occur. These are the
full set of events you will simulate:
1
Event Description
cpu The processor executes for 1 time step the currently running process
new A new process is created and put at tail of the ready queue
done The currently running process has �nished
wait X The currently running process has done an I/O operation and
is waiting on event X
event X Event X has occurred, the process waiting on that event should
be made ready.
The input �le will simply be a list of events that occur in the system, in
the order they are to occur. For example:
----- simulation-01.sim --------
new
cpu
cpu
cpu
new
cpu
cpu
cpu
cpu
wait 1
cpu
cpu
event 1
cpu
cpu
done
cpu
cpu
cpu
cpu
exit
----------------------------------
Your task is to read in the events, and simulate the creation and execution
of processes in the system as they move through the various three-states of
their process life cycle. You need to:
2
ˆ De�ne a simple process control block (PCB) to hold information about
all processes currently running in your system. The PCB can be a
simple C struct or a C++ class. At a minimum you need to have a
�eld for the process identi�er and the process state (Ready, Running or
Blocked). You need to also keep track of the time step that the process
entered the system, and the number of steps the process has been
running. Minimal credit will be given to programs that at least handle
new events and create a process in a simulated PCB. You probably
need a list or an array to hold the current processes that have been
created and are being managed by your simulated system.
ˆ You will need a ready queue of some kind. You should use a C++
Standard Template Library (STL) container to manage your ready
queue.
ˆ You will need to implement a simple dispatcher function. Whenever
a cpu event occurs, and no process is currently running, you should
select the next Ready process from the head of your ready queue and
start it running on the processor.
ˆ You need to also implement a simple time slicing mechanism. The
time slice value to use will be passed into your program when it is
started. At the end of a cpu cycle, you should check if the currently
running process has executed for its full time quant ...
Programming Assignment #2CSci 430 Spring 2019Dates.docxdenneymargareta
Programming Assignment #2
CSci 430 Spring 2019
Dates:
Assigned: Monday February 4, 2019
Due: Wednesday February 20, 2019 (before Midnight)
Objectives:
ˆ Explore the Process state models from an implementation point of
view.
ˆ Practice using basic queue data types and implementing in C.
ˆ Use C/C++ data structures to implement a process control block and
round robin scheduling queues.
ˆ Learn about Process switching and multiprogramming concepts.
Description:
In this assignment you will simulate a Three-State process model (ready,
running and blocked) and a simple process control block structure as dis-
cussed in Chapter 3. Your program will read input and directives from a
�le. The input describes a time sequence of events that occur. These are the
full set of events you will simulate:
1
Event Description
cpu The processor executes for 1 time step the currently running process
new A new process is created and put at tail of the ready queue
done The currently running process has �nished
wait X The currently running process has done an I/O operation and
is waiting on event X
event X Event X has occurred, the process waiting on that event should
be made ready.
The input �le will simply be a list of events that occur in the system, in
the order they are to occur. For example:
----- simulation-01.sim --------
new
cpu
cpu
cpu
new
cpu
cpu
cpu
cpu
wait 1
cpu
cpu
event 1
cpu
cpu
done
cpu
cpu
cpu
cpu
exit
----------------------------------
Your task is to read in the events, and simulate the creation and execution
of processes in the system as they move through the various three-states of
their process life cycle. You need to:
2
ˆ De�ne a simple process control block (PCB) to hold information about
all processes currently running in your system. The PCB can be a
simple C struct or a C++ class. At a minimum you need to have a
�eld for the process identi�er and the process state (Ready, Running or
Blocked). You need to also keep track of the time step that the process
entered the system, and the number of steps the process has been
running. Minimal credit will be given to programs that at least handle
new events and create a process in a simulated PCB. You probably
need a list or an array to hold the current processes that have been
created and are being managed by your simulated system.
ˆ You will need a ready queue of some kind. You should use a C++
Standard Template Library (STL) container to manage your ready
queue.
ˆ You will need to implement a simple dispatcher function. Whenever
a cpu event occurs, and no process is currently running, you should
select the next Ready process from the head of your ready queue and
start it running on the processor.
ˆ You need to also implement a simple time slicing mechanism. The
time slice value to use will be passed into your program when it is
started. At the end of a cpu cycle, you should check if the currently
running process has executed for its full time quant ...
Dicoding Developer Coaching #18: Android | Membuat Aplikasi Pengingat dengan ...DicodingEvent
Dicoding Developer Coaching merupakan webinar, yang membahas tuntas kendala maupun pertanyaan yang sering ditanyakan di Academy Dicoding.
Tema kali ini adalah "Membuat Aplikasi Pengingat dengan Menggunakan Alarm dan Scheduler."
Di sini Anda akan mempelajari komponen Alarm Manager. Komponen ini berguna ketika kita ingin membuat aplikasi yang memiliki fungsi pengingat (reminder), jadwal tayang film di bioskop, atau bisa digunakan untuk membuat aplikasi alarm dan proses yang ingin dijalankan di waktu tertentu.
MCRL2 by kashif khan
kashif.namal@gmail.com
Master in Computer Science University of Camerino italy
Bachelor in Software Engineering University of Bradford UK
Pointer Events Working Group update / TPAC 2023 / Patrick H. LaukePatrick Lauke
Update about Pointer Events Level 3 work for the upcoming W3C Technical Plenary and Advisory Committee (TPAC) 2023 in Seville
https://www.youtube.com/watch?v=r0spZl1qaa0
https://w3c.github.io/pointerevents/
https://www.w3.org/TR/pointerevents/
https://www.w3.org/2023/09/TPAC/
https://patrickhlauke.github.io/touch/w3c_tpac2023_pewg/
Cross-posted from https://www.w3.org/2023/09/TPAC/group-updates.html#pointer-events
A dive into akka streams: from the basics to a real-world scenarioGioia Ballin
Reactive streaming is becoming the best approach to handle data flows across asynchronous boundaries. Here, we present the implementation of a real-world application based on Akka Streams. After reviewing the basics, we will discuss the development of a data processing pipeline that collects real-time sensor data and sends it to a Kinesis stream. There are various possible point of failures in this architecture. What should happen when Kinesis is unavailable? If the data flow is not handled in the correct way, some information may get lost. Akka Streams are the tools that enabled us to build a reliable processing logic for the pipeline that avoids data losses and maximizes the robustness of the entire system.
Programming Assignment #2CSci 430 Spring 2019Dates.docxstilliegeorgiana
Programming Assignment #2
CSci 430 Spring 2019
Dates:
Assigned: Monday February 4, 2019
Due: Wednesday February 20, 2019 (before Midnight)
Objectives:
ˆ Explore the Process state models from an implementation point of
view.
ˆ Practice using basic queue data types and implementing in C.
ˆ Use C/C++ data structures to implement a process control block and
round robin scheduling queues.
ˆ Learn about Process switching and multiprogramming concepts.
Description:
In this assignment you will simulate a Three-State process model (ready,
running and blocked) and a simple process control block structure as dis-
cussed in Chapter 3. Your program will read input and directives from a
�le. The input describes a time sequence of events that occur. These are the
full set of events you will simulate:
1
Event Description
cpu The processor executes for 1 time step the currently running process
new A new process is created and put at tail of the ready queue
done The currently running process has �nished
wait X The currently running process has done an I/O operation and
is waiting on event X
event X Event X has occurred, the process waiting on that event should
be made ready.
The input �le will simply be a list of events that occur in the system, in
the order they are to occur. For example:
----- simulation-01.sim --------
new
cpu
cpu
cpu
new
cpu
cpu
cpu
cpu
wait 1
cpu
cpu
event 1
cpu
cpu
done
cpu
cpu
cpu
cpu
exit
----------------------------------
Your task is to read in the events, and simulate the creation and execution
of processes in the system as they move through the various three-states of
their process life cycle. You need to:
2
ˆ De�ne a simple process control block (PCB) to hold information about
all processes currently running in your system. The PCB can be a
simple C struct or a C++ class. At a minimum you need to have a
�eld for the process identi�er and the process state (Ready, Running or
Blocked). You need to also keep track of the time step that the process
entered the system, and the number of steps the process has been
running. Minimal credit will be given to programs that at least handle
new events and create a process in a simulated PCB. You probably
need a list or an array to hold the current processes that have been
created and are being managed by your simulated system.
ˆ You will need a ready queue of some kind. You should use a C++
Standard Template Library (STL) container to manage your ready
queue.
ˆ You will need to implement a simple dispatcher function. Whenever
a cpu event occurs, and no process is currently running, you should
select the next Ready process from the head of your ready queue and
start it running on the processor.
ˆ You need to also implement a simple time slicing mechanism. The
time slice value to use will be passed into your program when it is
started. At the end of a cpu cycle, you should check if the currently
running process has executed for its full time quant ...
Programming Assignment #2CSci 430 Spring 2019Dates.docxdenneymargareta
Programming Assignment #2
CSci 430 Spring 2019
Dates:
Assigned: Monday February 4, 2019
Due: Wednesday February 20, 2019 (before Midnight)
Objectives:
ˆ Explore the Process state models from an implementation point of
view.
ˆ Practice using basic queue data types and implementing in C.
ˆ Use C/C++ data structures to implement a process control block and
round robin scheduling queues.
ˆ Learn about Process switching and multiprogramming concepts.
Description:
In this assignment you will simulate a Three-State process model (ready,
running and blocked) and a simple process control block structure as dis-
cussed in Chapter 3. Your program will read input and directives from a
�le. The input describes a time sequence of events that occur. These are the
full set of events you will simulate:
1
Event Description
cpu The processor executes for 1 time step the currently running process
new A new process is created and put at tail of the ready queue
done The currently running process has �nished
wait X The currently running process has done an I/O operation and
is waiting on event X
event X Event X has occurred, the process waiting on that event should
be made ready.
The input �le will simply be a list of events that occur in the system, in
the order they are to occur. For example:
----- simulation-01.sim --------
new
cpu
cpu
cpu
new
cpu
cpu
cpu
cpu
wait 1
cpu
cpu
event 1
cpu
cpu
done
cpu
cpu
cpu
cpu
exit
----------------------------------
Your task is to read in the events, and simulate the creation and execution
of processes in the system as they move through the various three-states of
their process life cycle. You need to:
2
ˆ De�ne a simple process control block (PCB) to hold information about
all processes currently running in your system. The PCB can be a
simple C struct or a C++ class. At a minimum you need to have a
�eld for the process identi�er and the process state (Ready, Running or
Blocked). You need to also keep track of the time step that the process
entered the system, and the number of steps the process has been
running. Minimal credit will be given to programs that at least handle
new events and create a process in a simulated PCB. You probably
need a list or an array to hold the current processes that have been
created and are being managed by your simulated system.
ˆ You will need a ready queue of some kind. You should use a C++
Standard Template Library (STL) container to manage your ready
queue.
ˆ You will need to implement a simple dispatcher function. Whenever
a cpu event occurs, and no process is currently running, you should
select the next Ready process from the head of your ready queue and
start it running on the processor.
ˆ You need to also implement a simple time slicing mechanism. The
time slice value to use will be passed into your program when it is
started. At the end of a cpu cycle, you should check if the currently
running process has executed for its full time quant ...
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Adaptive synchronous sliding control for a robot manipulator based on neural ...IJECEIAES
Robot manipulators have become important equipment in production lines, medical fields, and transportation. Improving the quality of trajectory tracking for
robot hands is always an attractive topic in the research community. This is a
challenging problem because robot manipulators are complex nonlinear systems
and are often subject to fluctuations in loads and external disturbances. This
article proposes an adaptive synchronous sliding control scheme to improve trajectory tracking performance for a robot manipulator. The proposed controller
ensures that the positions of the joints track the desired trajectory, synchronize
the errors, and significantly reduces chattering. First, the synchronous tracking
errors and synchronous sliding surfaces are presented. Second, the synchronous
tracking error dynamics are determined. Third, a robust adaptive control law is
designed,the unknown components of the model are estimated online by the neural network, and the parameters of the switching elements are selected by fuzzy
logic. The built algorithm ensures that the tracking and approximation errors
are ultimately uniformly bounded (UUB). Finally, the effectiveness of the constructed algorithm is demonstrated through simulation and experimental results.
Simulation and experimental results show that the proposed controller is effective with small synchronous tracking errors, and the chattering phenomenon is
significantly reduced.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
2. UPS Goals
Add “Push Workflow” & “Create Workitem”
– Request another system to add item to worklist
Simplify Implementation
– GPWL had N:M relation of SPS:PPS
– State diagram was very complex
Add “Cancel Request”
Improve Status/Result Monitoring
– Getting PPS feed was awkward;
required configuration and forwarding
3. Interesting UPS Features
Remote create
Task Locking by performer
Deletion Locking by watchers
Subscription-based Monitoring
“Gift Subscriptions”
Push, Pull, and Watch Workflows
Sub-contracting
1-to-1 relationship between SPS and PPS
4 SOP Classes operating on 1 IOD
4. UPS Architecture
One object
– Each item on a worklist is a UPS Object
– UPS Object = Unified Procedure Step IOD
– Unified = contains details of both the
requested task & the performed task
Four SOP Classes
– UPS Push SOP Class
– UPS Pull SOP Class
– UPS Watch SOP Class
– UPS Event SOP Class
5. UPS Object
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
A UPS Object has its attributes
grouped into 4 Modules:
(this does not affect processing;
just for logical organization)
7. UPS Object Modules
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
Scheduled Proc. Info. Module
- Priority
- Requested perform./completion time
- Requested resources/location
- Requested Procedure descrip./codes
- Requested Processing parameters
- List of Input data IDs
- Input Data Availability Flag
- etc…
8. UPS Object Modules
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
Progress Module
- UPS State (Scheduled,
In-Progress, Completed, Canceled)
- Progress Status – Numerical
(e.g. % complete)
- Progress Status – Description
(e.g. Annealing phase complete)
- Contact information for performer
(e.g. phone #)
- etc…
9. UPS Object Modules
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
Performed Proc. Info. Module
- Time Performed/completed
- Performing resources/location
- Performed Procedure descrip./codes
- Performed Processing parameters
- List of Output data IDs
- etc…
10. UPS State Diagram
SCHEDULED
IN PROGRESS
COMPLETED CANCELED
N-CREATE by an SCU
(or SCP internal logic)
N-ACTION by an SCU with the lock key
(or SCP internal logic)
N-ACTION by an SCU
(or SCP internal logic)
11. UPS
UPS Pull Workflow
3D Workstation
Worklist
Manager
(SCP)
Performer
(SCU)
Watcher
(SCU)
Requester
(SCU)
Query
Get UPS Contents
UPS State “In-Progress”
UPS State “Complete”
Set UPS Contents
Dashboard
System
12. UPS SOP Classes
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
Each UPS Object is managed by a
single SCP.
4 SOP Classes exist which can be
used to operate on a UPS object.
Each SOP Class supports a few
related operations.
SCU/SCP not required to implement
all the SOP Classes. Can implement
SOP Classes based on the operations
it needs.
13. UPS SOP Classes
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
UPS Push SOP Class
allows SCU systems to:
* create (push) a new worklist item
(i.e. instance) on a worklist
* request cancellation of a worklist
item
14. UPS SOP Classes
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
UPS Pull SOP Class
allows SCU systems to:
* query a worklist for matching items
* take ownership/control (pull) of a
worklist item
* modify progress/status/result details
for the worklist item
* finalize a controlled worklist item as
Completed or Canceled.
15. UPS SOP Classes
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
UPS Watch SOP Class
allows SCU systems to:
* query a worklist for items of interest
* subscribe/unsubscribe for change
events for one worklist item
* subscribe/unsubscribe for change
events for all worklist items
* get details for a worklist item
* request cancellation of a worklist
item
16. UPS SOP Classes
UPS Object
Sched. Task Details
Progress
Perf. Task Details
Relationship
UPS Event SOP Class
allows SCU systems to:
* receive change events for worklist
items
17. UPS Task Locking
For a UPS in SCHEDULED State:
(SCU does N-ACTION to IN-PROGRESS)
SCP generates a lock ID
(SCP returns lock ID to performing SCU)
For a UPS in IN-PROGRESS State:
N-SET without lock ID is rejected by SCP
N-ACTION to change state “ “
Of course, lock ID could be distributed,
but be careful
18. Pull Workflow
R I S
3D Workstation
Give me a list of tasks that need to be done
(C-FIND)
UPS
UPS
UPS
UPS
SCP SCU
I will do that one
(N-ACTION Set to IN-PROGRESS)
I am finished
(N-ACTION Set to COMPLETE)
Record these details in the UPS
(N-SET attribute values)
19. Pull Workflow – 3D Workstation
3D
Workstation
3D
Workstation
Acquisition
Modality
RIS 3D
Worklist Manager
3D
Workstation
Store Images
PACS
Add UPS Task (N-CREATE)
MPPS Complete
Create UPS for Task X
Add RIS to Task X
Subscriber List (based on
prior Global Subscription)
Query Worklist (C-FIND)
Confirm Availability
of Task X inputs
Query Input Image Instances
Select UPS for Task X
Claim Task X
(N-ACTION IN-PROGRESS)
Report Task X In-Progress (N-EVENT)
Retrieve Input Image Instances
Return Transaction-UID
Generate 3D Views
requested in Task X
Store 3D Views
Complete Task X
(N-ACTION COMPLETE [T-UID])
Report Task X Complete (N-EVENT)
Record Task Details
(N-SET [T-UID] )
Retrieve Final State Details (N-GET)
Retrieve full details for Task X
(N-GET)
20. Comparison to Modality Worklist
MWL is like UPS Pull-mode, except
– UPS combines SPS and MPPS in a single object
– UPS has extra features
UPS will not generally replace MWL
– MWL does it’s (limited) job reasonably well
– MWL has a large install base
UPS might supplement MWL for specific
applications that need it’s features
– e.g. Push Workflow for X-Ray clinics
21. Push Workflow
R I S
3D Workstation
Please perform this task
(N-CREATE with these attribute values) UPS
SCU SCP
I have started to do that task
(N-EVENT it is IN-PROGRESS)
I am finished
(N-EVENT it is COMPLETE)
I have updated details in the UPS
(N-EVENT)
Notify me about progress for that task
(N-ACTION Subscribe)
Give me the result details of the task
(N-GET these attribute values)
22. Push Workflow – X-Ray Clinic
X-Ray
(Room #3)
X-Ray
(Room #2)
PACS
X-Ray
(Room #1)
RIS
Add UPS Task (N-CREATE)
Create UPS for Task X
Update Task X UPS Status to
IN-PROGRESS
Report Task X In-Progress (N-EVENT)
Report Task X Complete (N-EVENT)
Update Task X Details
Retrieve Final State Details (N-GET)
Subscribe globally for events
(N-ACTION SUBSCRIBE [Well-Known Instance])
. . .
Update Task X UPS Status to
COMPLETE
Store Images
Display Progress
“Exam Started”
Update Task X UPS Progress to
”All Views Taken”
Report Task X Progress (N-EVENT)
RIS assigns Mr. X
to Room 1
Delete Task X
Display Progress
“Exam Complete”
Patient (Mr. X) arrives at Reception
Patient (Mr. X) arrives at X-Ray Room 1 Tech confirms identify of Mr. X
and begins procedure
Display Progress
“All Views Taken”
UnSubscribe for Task X
(N-ACTION SUBSCRIBE [Task X])
23. Watch Workflow
No central controller
– Workstation watches flow of N-EVENTs:
“System A did X”, “System B did Y”
– Workstation decides “Hmmm, I think I will do this”
– Workstation internally creates a UPS
– Interested Subscribers are notified of Workstation
activity via N-EVENT; N-GET details as needed
Examples:
– CAD workstation sees N-EVENT that Mammo
Acq. is complete; decides to do CAD processing
– Reporting station sees N-EVENT that CAD is
complete; decides to queue reading worklist for
that study
25. Deletion Locks & Reliable Watchers
Reliable Watcher (SCU)
– Problem: SCP might delete a completed UPS before SCU gets
needed details
– (e.g. due to Network latency or outage)
– Missing a UPS could prevent Watcher from:
monitoring completion
extracting details
creating subsequent UPS Instances,
referencing UPS 1 outputs as UPS 2 inputs
Mechanism
– SCU Sets a Deletion Lock flag during subscription
– SCP can’t delete UPS with outstanding Deletion Locks
– SCU removes Deletion Lock after retrieving final state of UPS
– SCP free to delete UPS after all deletion locks removed
– SCP documents how it handles orphans
26. Requesting Cancel
User
Terminal
Treatment
Delivery
System
Treatment
Management
System
Find UPS Task of Interest (C-FIND)
Update Task X Details (N-SET w TUID)
…
Operator agrees and
cancels Task X
User decides to cancel Task X
Request Task X Cancel
(N-ACTION REQUEST CANCEL) Report Task X Cancel Requested (N-EVENT)
Report Task X Canceled (N-EVENT)
Start Task X (N-ACTION IN PROGRESS)
Return Transaction UID (TUID)
User selects Task X
Start listening (N-ACTION SUBSCRIBE [Task X])
Return Current Task X Status (N-EVENT)
Copy Contact URI from Request into N-EVENT
Display Cancel Request
for Task X and Contact
URI to Operator
Operator pauses task &
uses Contact URI to call
user & discuss cancel
Cancel Task X (N-ACTION CANCELED w TUID)
27. Current DICOM Status
Sup 96 (UPS)
– Officially published as Frozen for Trial Use
Sup 74 (Radiotherapy Treatment Delivery Workflow)
– Officially published as Frozen for Trial Use
– Defines Treatment Delivery Objects
– Documents use of UPS for RT
– UPS references instances of RT Beams Delivery Instruction
– Treatment Delivery System (SCU) pulls work from the Treatment
Management System (SCP)
– Z.3.1.2 gives detailed example of UPS usage, specifying both the
task and input objects
Sup 124 (Softcopy Display Mgt.)
– Under development
– Defines Display management/callibration Tasks & Results
– Uses UPS to push Display Calibration jobs (with Task description)
& convey Results
28. Current IHE Status
IHE Radiation Oncology
– Planning to test Sup 74 workflow using UPS
IHE Mammography
– expressed interest in UPS features; (not committed yet)
– UPS could help handle complex cases such as:
Multi-pass Acquisition
Callbacks
CAD
Reading Worklists
IHE Radiology
– no plan to replace Modality Worklist for acquisition workflow
– will consider UPS when re-visiting Reporting Workflow
and Post-processing Workflow
– may profile Sup 124 when it’s ready