PERCEPTION EARLY , REQUIREMENT OF ANALYSIS
CONCEPT of SYSTEM INVESTIGATION
Gap between target of system condition and system in fact
Report detect problem don’t really real
a. Target too ideal
b. Lacking of resource and or attitude
c. Measurement of system less accurate
d. Target of system which have under developed
e. The difference between system of ideal system and whereas
CONCEPT SYSTEM OF INVESTIGATION
Solving Problem:
Formulation of system which is walking -> detail in investigation
Getting ideal system consensus
Developing some alternative
Choissening best alternative
Target of investigation -> showing the problem of which in fact happened
CONSTRAINT IN INVESTIGATION SYSTEM
The investigation of some constraint which is often emerge :
a. Time
b. Expense
c. Science
d. Politic
e. Interference
RECOMENDATION
The result from investigation is a containing recommendation, for example :
Don’t bring an action against anything -> problem not found
The conservancy of system -> problem of small
Improving ability or skill of user
The system Considering modification totally
Placing the problem that happened into system development plan which is immediately
TACTIC INVESTIGATION
Why needed tactics?
Finding all problems
Knowing cause of appearance is problem
Determining correct solution
Conducted so that all system element can accept offer of solution without bothering their activity
Some tactics able to be conducted :
Listening opinion from perpetrator of system
Don’t give resolving early
Comparing story some people perpetrator of system to same case
Paying attention the problem of logical inkonsistency
Direct:
Quesioner
Question And Answer
Perception
Indirect:
Stream Procedure
Studying document
Sample
Tabular
DESCRIPTION OF SYSTEM
Input
Output
File
Data element
Volume Transaction and action document
Data flowchart
The intensive Interaction phase between system analyst with user end where system development team show its membership to get comments and trust of user so that get good participation

4 TARGET OF WHICH WISH TO BE REACHED
Explaining system completely
Depicting ideal information system
Bringing ideal information system to condition in this time by paying attention resource constraint
Giving motivation to confidence of user into system development
Method
Question And Answer
Kueisioner
Observation
Procedure Analysis
Perception of document
CONSTRAINT RESOURCE
Time
Money
Membership
Technological
Factor of eksternal
The Document requirement of analysis
Analysis instruction : Relation with final user, perception of process, problem of data collecting
Requirement of User : Requirement in fact, Requirement of report, requirement of training and influence of new system
Constraint System : Explaining time constraint and expense, membership, technological and factor of eksternal
The Document in the form of data collecting instrument, statistical consensus, data stream by logical and physical, data element early in data dictionary.
How to draw near the condition of system in this time with condition of ideal system?
Make alternative to solve problem information system
the Best alternative applied wisely
Choice Strategy
Distributed Versus processing centralized
Change of decision of information of data centralized of processing to center responsibility user end decentralized
Database dispersed versus Integrated
Designer of system should to consider data any kind of which into databases and which come into file
Surround Strategy of System Development
Environmental around important strategy in the case of confiscation because information system of other company possible differ from company in this time.
Choice Tactics
Conducted before choice scheme of operational
Choice Scheme of Operational
Choice Scheme can be grouped into
Input
Online Vs Off Line Data Entry
Keyed Vs Machine Readable Data Entry
Centralized Vs Decentralized Data Entry
Processing
Batch of Vs Real time update record
Sequential Vs Direct Access records to
Single Vs Multiple User update records of
Output
Traditional Vs Turn Around Documents
Structured Vs Inquiry reports based
The compare tactics: System compared to pursuant to advantage and expense relatively;
There is three way of system of A told more pre-eminent with other system if:
A have lower expense of B and advantage both is same
A have lower expense of B and of A yield advantage which more than B
A and of B have same expense but yielded advantage is A more.
Some Method of Comparasy system
Break Even Analyisis point
Payback Period
Discounted Payback period
Internal Rate Of Return
Category of Expense
Hardware
Software
People
Suppliers
Telecommunications
Physical Sites
Detail of Expense
Comparing the expense of information system pass life of system, projection analyst how many change of expense for the future and there three model of expense of information system that is Linear, Eksponensial and Step Function
Expense of information system earn just happened once and earn also happened chronically.
Expense of just information system that happened once that is cost on times and of development cost that happened system development moment.
Expense of information system that happened continually among others is cost reccuring and also cost operational where this expense happened information system moment operate every day.
Factor Qualitative which is good information system performance flange among others
Lessening mistake storey
Lessening time to improve repair mistake
Lessening time listen carefully from alternative workstation
Quickening ready time of information
Improving system security
Multiply update is source of active record
Improving satisfaction of wearer

FACTOR STRATEGY COMPANY
Satisfaction of consumer
Mount sale
Consumer commitment and of vendor
Information product marketing
The presentation in a word
Lessening clarification of technique in detail
The representations clearly by means of assist visually
If using model use appliance assist for example laptop so that more informative
Emphasizing advantage of information system proposal with a few existing alternative according to condition of natural by company.
If company set mind on to develop system hence information department will process hereinafter that is Process of Design System.
If on the contrary hence System Development Life Cycle ( SDLC) will be discontinued
Frequently will be found the problem of with study system and usually management top will ask of reworking to study system. Model will explain repeated step some part and sometime information department will make decision to repeat step before explaining study system. With alternative, decision to repeat a step of SDLC not to speak of or previous Go – No – Go Decision