Flexible and Adaptive. Challenges and Solutions

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1 Flexible and Adaptive Process-oriented oriented Information Systems Challenges and Solutions Peter Dadam, Manfred Reichert Institute of Databases and Information Systems University of Ulm D Ulm, Germany {peter.dadam, ulm de P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008

Ulm, Germany www.informatik.uni-ulm.de/dbis {peter.dadam, manfred.reichert}@uni-ulm.

2 Service-oriented Implementation of Processes Current Hype in IT Magazines EAI Web Services SOA Process Orientation BPEL Process Optimization Workflow Management P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008

Optimization Workflow Management P. Dadam, M.

3 Service-oriented Implementation of Processes Situation of today users interact with monolithic, function-oriented application systems processes only in the users minds with only partial knowledge of the process P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 3

users minds with only partial knowledge of the process P. Dadam, M.

4 Service-oriented Implementation of Processes Vision of SOA individually callable application functions ( services ) P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 4

5 Service-oriented Implementation of Processes Vision of SOA individually callable application functions ( services ) S 1 S S 3 S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S 1 P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 5

S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S 1 P. Dadam, M.

6 Service-oriented Implementation of Processes Vision of SOA individually callable application functions ( services ) combined by explicitly defined processes whose execution is supported by a process management system Process Management System S 1 S S 3 S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S 1 P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 6

process management system Process Management System S 1 S S 3 S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S

7 Service-oriented Implementation of Processes Goals of SOA improvement of process quality (reduction of errors, waste time, ) increased flexibility Process Management System S 1 S S 3 S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S 1 P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 7

Management System S 1 S S 3 S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S 1 P. Dadam, M.

8 Service-oriented Implementation of Processes Different aspects of flexibility very important to discriminate flexibility at build-time flexibility at run-time How fast can new processes be implemented? How to handle exceptional cases during process execution? P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 8

new processes be implemented? How to handle exceptional cases during process execution? P.

9 Service-oriented Implementation of Processes Essential questions when looking at the whole picture How to implement process-aware IS quicker and cheaper? How to ensure robustness? How to handle unforeseen cases? How to support ad-hoc deviations from the pre-modeled execution order without "bad surprises" (= run-time errors)? How to make this task so simple that it can be performed by the end-user? How to support changes of the process template in the context of long-running processes? P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 9

How to support ad-hoc deviations from the pre-modeled execution order without "bad surprises" (= run-time errors)?

10 ADEPT Editor: Surprise-free process models by construction Construction of processes by plug & play fashion Goal: No bad surprises at run-time! P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS),

11 Technological Challenges & ADEPT Solutions Challenge: Ad-hoc deviations at process instance level P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS),

12 Technological Challenges & ADEPT Solutions Challenge: Ad-hoc deviations at process instance level Insertion of new steps Deletion of steps Shifting of steps to another position for process instances in execution!. P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS), 008 1

steps to another position for process instances in execution!. P. Dadam, M.

13 Technological Challenges & ADEPT Solutions Challenge: Ad-hoc deviations at process instance level becomes complicated in more general scenarios data flows among process steps! provision of parameter values! P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS),

flows among process steps! provision of parameter values! P. Dadam, M.

14 Technological Challenges & ADEPT Solutions Challenge: Ad-hoc deviations at process instance level Current Situation: Pre-modeling of all possible cases and exceptional cases required and/or treatment of exceptional cases within the application functions or immature solutions ( at the user s risk ) Consequences: High effort for realization Limited applicability Unexpected exceptions cannot be treated P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS),

functions or immature solutions ( at the user s risk ) Consequences: High effort for realization Limited applicability

15 Technological Challenges & ADEPT Solutions Challenge: Ad-hoc deviations at process instance level ADEPT Provision of powerful operations for ad-hoc deviations at the system s API Immediate correctness checks no bad surprises at run-time Simplifies the task of the application programmer significantly Overhead Appl. Fct. 1 Appl. Fct. Appl. Fct. 3 Appl. Fct. 4 insert node delete node Today's Workflow Management schema mod. System model check instance migr. move node data flow adj. graph transf. time mgt. ADEPT Process Management System model to follow: Relational Database Management Systems P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS),

Fct. 4 insert node delete node Today's Workflow Management schema mod. System model check instance migr. move node data flow adj. graph transf. time mgt.

16 Other Research Activities Visualization of Large Processes Process Configuration and Process Variants Data-driven Modeling, Coordination and Adaptation of Processes Process Constraint Management & Process Compliance Temporal Constraints (e.g., Scheduling, Periodicity) Process Variants Mining Security in Process-aware IS Composition of Process-aware IS (Plug & Play) Next Generation Service-oriented Computing Evolution of other Aspects (e.g., Org. Models, Access Rules) P. Dadam, M. Reichert, University of Ulm, Institute of Databases and Information Systems (DBIS),

ment & Process Compliance Temporal Constraints (e.g.

Enabling Process Support for Advanced Applications with the AristaFlow BPM Suite

Enabling Process Support for Advanced Applications with the AristaFlow BPM Suite Andreas Lanz 1, Ulrich Kreher 2, Manfred Reichert 1, and Peter Dadam 1 1 Institute of Databases and Information Systems,