Presentation of the paper on "Context-Aware Adaption of Software Entities Using Rules" at ICEIS 2017

1. 1
Context-Aware Adaption of
Software Entities Using Rules
Lauma Jokste, Jānis Grabis
Information Technology Institute, Riga Technical University
Kalku 1, Riga, LV-1658, Latvia
lauma.jokste@rtu.lv, grabis@rtu.lv

2. 22
 Used to executed enterprise business
processes
 Wide scope
– Many processes
– Many users
– High scalability requirements
 High complexity
– Emphasis on internal integration
Enterprise Applications

3. 33
Enterprise Application

4. 44
Based on the MAPE loop
Adaption module is
decoupled from the core
parts of the enterprise
applications
Adaptation process should
be applicable for different
kind of SEs following a
uniform design.
A set of approved and
reusable adaption actions
Self-learning and
knowledge sharing
Unobtrusive adaptation
Adaption Requirements

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Software Entities
Software entity is an
information or actionable
software artifact including
enterprise data

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Adaptation Module

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 Context dependency rule
– Association rules relating Software entities
and potential context values
 SE ⇒ CE(V) – software entity is associate with context
element value
 Adaptation rule
– Event-Action-Condition rules indicating
adaption action to be perform if context
situation is observed
 IF Context Situation THEN Action ON Software Entity
Types Rules

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Adaption Process

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 E-government system
– Multiple modules
– Range of technologies
 Used by >100 municipalities
 Limited and unevenly spread maintenance
resources
– How to share the system’s usage knowledge
among municipalities.
Application Example

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Software Entities:
E-government System

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Sample Context Dependency
Rules
• ⇒ Lessee profile
(‘active’)
E-service: Real
estate rent object list
• ⇒ lessee profile
(‘active’)
List column: area
• ⇒Time spent in object
list(>180 sec)
Search field
• ⇒ Unsuccessful
searches per hour (>10)
Publish online
procedure

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Sample Adaptation Rules
• THEN highlight rent objects in list
WHERE rent object area≥30000
m2
IF lessee
profile=’active’
• THEN automatically order list by
area column descending
IF lessee
profile=‘active’
• THEN highlight search field
IF time spent in
object list >180 sec
• THEN automatic e-mail/text
notification to RENT user/-s.
IF unsuccessful
searches per
hour>10

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Adaptation Example
• ⇒ Unsuccessful
searches per hour (>10)
Publish online
procedure
• THEN automatic e-
mail/text notification to
RENT user/-s.
IF unsuccessful
searches per
hour>10

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 Distinctive features
– Uniform treatment of SEs constituting the
enterprise applications
– Specification of expected user action to evaluate
rules
– Adaption is externalized without affecting
development and maintenance of key
functionality
 Evaluation of adaptation benefits
 Performance and technological challenges
 Incentives for knowledge sharing
Conclusion

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Thank you!
This research has received funding from the research
project "Competence Centre of Information and
Communication Technologies" of EU Structural funds,
contract No. .2.1.1/16/A/007 signed between IT
Competence Centre and Central Finance and
Contracting Agency