DECISION SUPPORT SYSTEM DEVELOPMENT Mata Kuliah : CSM 211 , Management Support System Tahun Akademik : 2014/2015 DECISION SUPPORT SYSTEM DEVELOPMENT Pertemuan_6 6-1

Sasaran Pembelajaran Understand the basic concepts of system development Describe the four phases of the (PADI) system development life cycle “ planning, analysis, development and implementation Understand prototyping and throwaway prototyping and why DSS are typically developed using these methods Describe the factors that lead to DSS success or failure Discuss the importance of project management and the necessary skills of a good project manager Describe the three technology levels of DSS : DSS primary tools, DSS integrated tools (generators), and specific DSS Understand the learning process that occurs during DSS development 6-2

PROCESS DEVELOPING A SYSTEM Target Pembelajaran The student can describe about development strategic of Decision Support System (DSS) PROCESS DEVELOPING A SYSTEM 1. PLANNING Determine business needed Feasibility study (technical, cost, organizational) Decision (approved) top management Project Planning 2. ANALYSIS Analysis of existing system Fact Finding and Data Making Process modeling and data modeling 6-3

PROCESS DEVELOPING A SYSTEM 3. DESIGN Design user interface, form, screen, report, application programs and database Procurement of Hardware, software, Network Infrastructure Design system specification and program design 4. IMPLEMENTATION Testing and code debugging Installation and production 6-4

The Traditional System Development Life Cycle (SDLC) 6-5

CASE TOOLS Case tools assist in the analysis phase in creating system diagram. CASE is software to supporting system analist to accomplish phase of system development UPPER CASE : Tools Analysis LOWER CASE : Tools generate program application and database Integrated CASE : combination Example : ORACLE/9i Developer Suite, Rational Rose & RSAS ( IBM Corp),Paradigm Plus (Platinum Technology), Visible, Logic Work, Axiomsys, VS.Net 6-6

PROJECT MANAGEMENT Defining requirement Managing change Obtaining executive level buy in Setting project timelines based on realistic goals and prorities Solving project management problems with a technology silver bullet or training (software may help use it) 6-7

PROJECT IMPLEMENTATION FAILURE Lack of stakeholder involvement Incomplete requirements Lack of sponsor support Unrealistic expectation Lack of commitment from your business customers The key factor of Failure implementaion influence of process and environment 6-8

FACTOR SUCCESS IMPLEMENTATION Organization Culture Commitment and support of top management levels Attitude of Users and System Analist Experience of Users Capable and Adaptable of Developer System FACTOR SUCCESS PROJECT IMPLEMENTATION ( process side) Education Supporting and involve actively of USERS Training 6-9

Project Management Skills Leadership Communication Conflict Resolution Negotiation Team Building Listening Skills Relationship Management 6-10

PROJECT SUCCES FACTORS Support and Commitment of Executive/Top Management End User Involve Actively Experience Project Manager Clear Business Objectives Minimized Scope Project Standard infrastructure Organization Basic Requirement Formal Methodology Reliable Estimates Skill and Commitment Staff (Team IT) 6-11

Project Management Tools Software Project Management : Microsoft Project, Plan View, Active Project Web-enable with collaboration : Determined time and place Human Resource and Application Programs Portofolio Project Web Enable Analysis data project with comprehensive 6-12

ALTERNATIVE METHOLOGIES Parallel Development Development parallel with integrated on time implementation 2. RAD : Quick development with standar function : Phase Development Prototyping Throwaway Prototyping 6-13

Alternative Methodologies a. Phase Development Development partials as user requirement of the project b. Prototyping Analysis, design, implementation paralles and iteratif Result Development can used USER to giving advice for evaluation and improvement systems c. Throwaway Prototyping Consolidate of SDLC with prototyping Start development from simple of scope project After finish prototipe, can continue with development system actualy 6-14

Prototyping Development Process A Rapid Application Development (RAD) Method 6-15

Throwaway Prototyping Development Process Another Rapid Application Development Method 6-16

Methodologies of Development DSS AGILE METHODOLOGY Rapid Prototyping, RAD to requirement system with change quickly or requirement that definition not clearly. Characteristics : Inputed more Delivery partial in short time Problem in time of integrated sistems Methodologies of Development DSS Prototyping Iterative Design Evolutionary Development Middle Out Process Adaptive Design Incremental Design 6-17

Change Management (LEWIN) Unfreezing Create an awareness of the need for change and a climate receptive to change Moving Change the magnitude and direction of the forces defining the initial need for change by developing new methods and learning new attitudes and behaviors Refreshing Reinforce the desired changes that have cocurred and establish a maintainable and stable new equilibrium 6-18

Technologies (Tools) DSS DSS Primary Tools ( elemen dasar) Program languange, editor grafis, query 2. DSS Generator (software to built DSS) Modeling, report generator, graphics, risk analysis Spesific DSS DSS application to specific tools 4. DSS Primary Tools to built integrate tools 6-19

DSS Technology Level/Tools and Web Impacts 6-20

Hardware DSS Personal Computer, multiprocessor, mainframe Hardware Selection Personal Computer, multiprocessor, mainframe Software Selection - Critiria multiple - in-house, outsource or Buying - Update software - Fluctuation Price - Difference tools 6-21

=============== thanks 4 your attention =============== Team Development DSS Focus Team Development to developing and improvement of DSS Development of end-user : Advantages : Time more quickly Spesification requirement user is not complety Reduce problem implementation Price is lower Disadvantages : Quality of sistem is not standard No good documentation Security Risk =============== thanks 4 your attention =============== 6-22