FIRST OBSERVATION, ANALISYS REQUIREMENT

INVESTIGATION SYSTEM CONCEPT
System investigation here is done when there is or there is a gap in the difference (gap) between the purpose of the system and actual system conditions. There are some point about Investigation System Concept :
1. Discrepancy between the objective of system and the real condition of system
2. Problem detection report is not real, because:
- the objective is too ideal
- lack of attitude and resources
- system measuring is not accurate
- the objective of system which have to be left behind
- difference between the idle system and the temporary system
3. The Problem solving
- Decompose the system is running. - Where is the investigation carried out here in detail - Getting a consensus that the ideal system - Developed several alternative - Selecting the best alternative
4. The objective of investigation have to show the problem which in fact is happened

PROBLEMS IN INVESTIGATION SYSTEM
There are some problems when conduct the investigation:
- Time
- Cost
- Science
- Politics
- Intervention



RECOMMENDATION Result of investigation is one recommendation, one that one of it is as follows:
- Don't take action whatever since undiscovered problem.
- Doing preserve system for problem what do little.
- Increasing ability or user skill at deep going or utilizes information system.
- Regarding for system modification totally.
- Placing happening problem into systems developmental plan which sh

INVESTIGATION TACTICS
We need tactics because :
- to find all issues
- Knowing the causes of the emergence of problems
- to determine the appropriate solution
Some of the tactics that can be done:
- Listen to opinions the subject of system
- Do not give the early breakthrough
- Compare the stories from the subject of system concerning in the same case
- Note the logical inconsistency problem

INVESTIGATION TECHNIQUE
Direct:
- The questionnaire
- FAQ
- Observations
Indirectly:
- Flow of procedure
- Reviewing documents
- Sample
- Tabular



SYSTEM DESCRIPTIONS At the moment found several descriptions about system, that is:
- Input
- Output
- File
- Data elements
- Transaction volume and document action
- Data Flow Diagram (DFD)
ANALYSIS REQUIREMENT
Stage of intensive interaction between the systems analyst with the end user where the system development team show their expertise to get feedback and trust so that the user get a good participation.
Four Purpose That Want Achieved:
- Explain the complete system
- Information system that describes the ideal
- Bringing information system to the ideal conditions at this time with attention to the constraints of resources
- Provide encouragement to the confidence in the system development
Method:
- FAQ
- Kuisioner
- Observation
- Analysis procedure
- Document observation

Resources problems:
- Time
- Money
- Expertise
- Technology
- External Factors
Analysis Document Requirement
- Landing analysis: Relationships with end users, the observation process, problems in data collection.
- The user needs: The need actual, reporting requirements, training needs and the influence of the new system.
- System constraints: Explain the constraints of time and cost, expertise, technology, and external factors.
- Documents such as data collection instruments, statistical consensus, the logical flow of data and physical, data elements in the initial data dictionary.
GENERATING SYSTEM ALTERNATIVES
There are several ways to approach the condition of the system at this time with the condition of the ideal system :
- Creating an alternative to solve the problem of information system.
- Alternative is best applied wisely.
Options strategies
- Distributed versus centralized processing.
Changes in decision-making information from the centralized data processing to the end user Decentralized responsibility center . Integrated versus dispersed database.
System designer must consider the data are entered in the database and enter the File
- Surround Strategy of System Development.

Designing Operational Options
The design options can be grouped into:
a. Input
- Online Vs Off Line Data Entry
- Keyed Vs Machine Readable Data Entry
- Centralized Vs Decentralized Data Entry
b. Processing
- Batch Vs Realtime record update
- Sequential Vs Direct Access to records
- Single Vs Multiple Users update of records

c. Output
- Traditional Vs Turn Around Documents
- Structured Vs Inquiry-based reports
SELECTING THE PROPER SYSTEM Compare tactics: systems based on the comparison of costs and benefits relative. There are 3 ways a system said the system is superior to the other if:
- A cost is lower than B and both are the same benefits
- A cost is lower than B and A yield advantage of more than B
- A and B have the same but the cost advantage generated a lot more.
Some Methods Comparison System,that is:
- Break Even point Analysis
- Payback Period
- Discounted payback period
- Internal Rate of Return


Cost Categories
- Hardware
- Software
- People
- Suppliers
- Telecommunications
- Physical sites
Cost Details Comparing the cost of information systems through the life of the system, analysts projected how the cost changes for the future and there are 3 models cost information system, namely Linear, and exponentially Step Function
Cost of information system can occur only once and can also occur continously.
- The cost of information systems that occur only once is ontime cost and development cost that occur during the development of the system.
The cost of information systems that occur on a continual basis are reccuring cost and operational cost where the cost of this is happened when the information system operates every day.
FACTORS INTO INFORMATION SYSTEM Qualitative factors that lead the performance information system that both of them
- Reduce errors
- Reduce the time to fix errors
- Reducing the response time from the workstation alternative
- Accelerating the provision of information
- Increase the security system
- Have active update source record
- Increase user satisfaction
CORPORATE STRATEGY FACTORS
- Customer satisfaction
- Level sales increased
- Commitment of consumers and vendors
- Information of marketing products

PRESENTING LEARNING OF SYSTEM
- Conduct a brief presentation
- Reduce technical explanation in detail
- Presenting clearly with visual aids
- If using a model using a tool such as a laptop so that more informative
- Emphasize the benefits of the proposed information system with some alternative that is appropriate conditions experienced by the company.


CONTINUING DESICION OR NOT
- If the company decided to develop the information system, the department will do next, namely the System Design Process.
- If then the System Development Life Cycle (SDLC) will be terminated.
- Often the problem will be found with the system and the study and top management will usually ask for the re-employment system to study.
- Model will describe some of the stages of the repeated and sometimes the information will make a decision before the repeat stage system of study.
- With the alternative, the decision to repeat a previous stage SDLC or not called Go - No-Go Decision.
REFFERENCE:
1. Slide Pengamatan Awal, Kebutuhan Analisis; Ngurah Agus Sanjaya ER, S.KOM, M.KOM