Computer Sided Software Engineering

Presented to

Mr. Inam-ul-HaqPresented by

Nayab Awan

Computer Aided Software Engineering

(CASE)

BS IT Computer Aided Software Engineering(CASE)

Presentation Outline What is CASE?

CASE Background

Importance of CASE?

Drawbacks of CASE

Scope of CASE

CASE Support to SDLC

CASE Tools

Summary

Conclusions

References

2 Computer Aided Software Engineering(CASE)

What is CASE?

Computer Aided Software Engineering (CASE) is the use of software tools[ I will discuss at slide 10 to onward] to assist in the development[ slide 7 and 8] and maintenance of software.

Computer-Aided Software Engineering (CASE) is thedomain where software tools used to design andimplement applications

Software systems that are intended to provide automatedsupport for software process activities

Automated support definition: Automated support is that we usesome software to develop another software. For example if weneed diagram representation of data in the form of flow chart andwe develop it by the help of a flow chart maker (software tool usedto develop flow charts) rather than developing manually(by hand).This is called automation support.


CASE Background

To speed up the software system building

process, a new concept of designing software

is introduced in the '70s, called Computer

Aided Software Engineering (CASE).[2]

This term is used for a new generation of

tools that applies rigorous (exact) engineering

principles to the development and analysis of

software.


Importance of CASE CASE allows for rapid development of software.

Produce system with a longer effective

operational life

Produce systems that most closely meet user

needs and requirements.

Produce system with excellent documentation

Produce systems that needs less systems

support

Produce more flexible systems


Drawbacks of CASE

Very Complex

Expensive

Difficult to customize

Require training of maintenance staff

Not easily maintainable

Fragile(Weak)


Scope of CASE CASE tools can be grouped together if they have

similar functionality, process activities and capability

of getting integrated with other tools.

The scope of CASE tools goes throughout the

SDLC(System Development life Cycle).


CASE Support to SDLC

Traditional

SDLCCASE

Support

SDLC


CASE Tools CASE tools can be broadly divided into the

following parts based on their use at a

particular SDLC stage

Detail of tools is at slide 10 onward

Upper Case Tools - Upper CASE tools are used in

planning, analysis and design stages of SDLC.

Lower Case Tools - Lower CASE tools are used in

implementation, testing and maintenance.

Integrated Case Tools - Integrated CASE tools

are helpful in all the stages of SDLC, from

Requirement

gathering to Testing and documentation.


CASE Tools CASE Tools Categories

Major categories of CASE tools are:


CASE Tools Diagram tools These tools are used to represent system

components, data and control flow among varioussoftware components and system structure in agraphical form.

Diagrammatic Representation of system.

Help to supervise a process across many differentfields. Examples

Flow Chart Maker tool for creating state-of-the-artflowcharts.

Rational Rose used for creating

o DFD’s(Data Flow Diagram)

o ERD’s (Entity Relationship Diagram)


CASE Tools

Process Modeling Tools

Process modeling is method to create software process

model, which is used to develop the software.

Process modeling tools help the managers to choose a

process model or modify it as per the requirement of

software product.

Examples

EPF(Eclipse Process Framework) Composer


CASE Tools

Project Management Tools

These tools are used for project planning, cost and

effort estimation, project scheduling and resource

planning.

These tools help Managers to comply project execution

with every mentioned step in software project

management.

Project management tools help in storing and sharing

project information like time tracking etc. in real-time

throughout the organization.

Examples

Creative Pro Office,

Trac Project,


CASE Tools Documentation Tools Documentation in a software project starts prior to the

software process, goes throughout all phases of SDLC.

Documentation tools generate documents for technicalusers and end users. Technical users are mostly in-house professionals of the

development team who refer to system manual, referencemanual, training manual, installation manuals etc.

The end user documents describe the functioning and how-to ofthe system such as user manual.

Training Manuals, Installation Manual, User Manualscan be generated by documentation tools. Examples

Doxygen,

DrExplain,14 Computer Aided Software Engineering(CASE)

CASE Tools

Analysis Tools

These tools help to gather requirements,

automatically check for any inconsistency,

inaccuracy in the diagrams, data redundancies or

erroneous omissions.

Examples

Accept 360,

Case Complete for requirement analysis,


CASE Tools Design Tools These tools help software designers to design the

block structure of the software, which may further bebroken down in smaller modules using refinementtechniques.

These tools provides detailing of each module andinterconnections among modules.

Animation, Modeling and Rendering of projects canbe generated by design tools Examples

Maya

KeyShot


CASE Tools

Configuration Management (CM) Tools

An instance of software is released under one version.

Configuration Management tools deal with

Version ,Baseline configuration and Change control

management

Bug tracking and Blogging can be done by CM

tools

Examples

Git, (version control software)

Accu REV.


CASE Tools Change Control Tools

These tools are considered as a part of

configuration management tools.

They deal with changes made to the software after

its baseline is fixed or when the software is first

released.

CASE tools automate change tracking, file

management, code management and more.

Examples

iTop


CASE Tools

Programming Tools

These tools consist of programming environments

like IDE (Integrated Development Environment), in-

built modules library and simulation tools.

These tools provide comprehensive aid in building

software product and include features for simulation

and testing.

Examples

Cscope to search code in C,

Eclipse.


CASE Tools Prototyping Tools

Software prototype is simulated version of the intended

software product. Prototype provides initial look and

feel of the product and simulates few aspect of actual

product.

Prototyping CASE tools essentially come with graphical

libraries. They can create hardware independent user

interfaces and design.

These tools help us to build rapid prototypes based on

existing information.

Examples

Serena prototype composer,

Mockup Builder.


CASE Tools

Web Development Tools

These tools assist in designing web pages with all

allied elements like forms, text, script, graphic and

so on.

Web tools also provide live preview of what is being

developed and how will it look after completion.

Examples

Adobe Edge Inspect

Foundation 3


CASE Tools Quality Assurance Tools

Quality assurance in a software organization is

monitoring the engineering process and methods

adopted to develop the software product in order to

ensure conformance of quality as per organization

standards.

QA tools consist of configuration and change control

tools and software testing tools.

Examples

JMeter.

AppsWatch,


CASE Tools

Maintenance Tools

Software maintenance includes modifications in the

software product after it is delivered.

Automatic logging and error reporting techniques,

automatic error ticket generation and root cause

Analysis are few CASE tools, which help software

organization in maintenance phase of SDLC.

Examples

Bugzilla for defect tracking,

HP Quality Center.


Flow Char Maker(CASE Tool)

Case Studies

Computer Aided Software Engineering(CASE)24

Flow Char Maker(CASE Tool)

Case Studies


Summary From above material it is concluded that CASE

have significant impact on

Software Quality Simply stated, CASE can signification contribute to a

reduction of errors in each development phase.

Software Maintenance Full and updated documentation by CASE tools

enables thorough examination of possible software adaptations(versions) for new applications.

Project Management CASE tools can significantly contribute from

deviation(going away) of budget and schedule from a plan and the reduction of high error rates and shorter correction cycles when needed.


Conclusion


It is concluded that CASE tools are a class of software that

automates many of the activities involved in SDLC phases. For example, when establishing the functional requirements of a proposed application,

prototyping tools can be used to develop graphic models of application screens to assist end

users to visualize how an application will look after development.

Subsequently, system designers can use automated design tools to transform the prototyped

functional requirements into detailed design documents. Programmers can then use automated

code generators to convert the design documents into code.

Automated tools can be used collectively or individually. For example, prototyping tools could be used to define application requirements that get

passed to design technicians who convert the requirements into detailed designs in a traditional

manner using flowcharts and narrative documents, without the assistance of automated design

software.

CASE tools can be used to increase productivity, decrease costs, enhance

project controls, and increase product quality.

Organizations can develop systems with appropriate functionality, security,

integrity, and reliability by using CASE tools.

Inadequate (poor) Standardization, Unrealistic Expectations are limitations of

CASE tools.

References1. Pressman, R. S. (2005). Software engineering: a

practitioner's approach. Palgrave Macmillan.

2. MULLER, H. (1996). Computer Aided Software

Engineering (p. 2). H. Muller, R. J. Norman, & J. Slonim

(Eds.). Kluwer Academic Publishers.

3. Accessed[14-04-2015]. Analysis(2015). Available:

http://www.umsl.edu/~sauterv/analysis/F08papers/View.ht

ml

4. Accessed[14-04-2015]. Ch_Overviewcase.html(2015).

Available:

https://docs.oracle.com/cd/E26228_01/doc.93/e21955/ch_o

verview_case.htm#WEACS128


http://www.umsl.edu/~sauterv/analysis/F08papers/View.html

https://docs.oracle.com/cd/E26228_01/doc.93/e21955/ch_overview_case.htm

Thankew..


Date post:	15-Jul-2015
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Computer Sided Software Engineering

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