FIRST OBSERVATION, ANALISYS REQUIREMENT

CONCEPT INVESTIGATION SYSTEM
Difference difference ( gap) of between target of system and system condition in fact
Report detect the problem not really real
1.purpose to ideal
2. Lacking of resource and or attitude
3.System measurement less be accurate
4.System target purpose under developed
5.Different between idle system and temporary system
Problem Solving:
1.System description walks on.Detailed investigation needs to solve the problem. Detailed investigation use system description walks on company.
2.Getting ideal system consensus
3.Developing some alternative
4.Chosening best alternative
5.Investigation Purpose to indicate the real problem.

RECOMENDATION
A result from investigation is a recomendation which are the following:
1.Does not take any action if the problem does not exist
2.Perform system maintenance of the small problems
3.Increasing the ability or skills
4.Consider modifications to total system
5.Putting the problem to occur in the development plan system which immediately made

INVESTIGATION TACTICS
Tactics of investigation is needed for example:
1.Can find all problem
2.Knowing cause of problem appearance
3.Determining correct solution
Investigation tactics must be done so that all system element can accept offer of solution without bothering their activity.
Some Tactic Can Be Do:
1.Listening system user opinion
2. Don’t give an early fission
3.Comparing system user story about the same case
4.Observation about logical inconsistency problem
INVESTIGATION TECHNICS
Direct:
1.Questionnaire
2. Asking and reply
3. Observation
Indirect:
1.Procedure flow
2. Document studying
3. Sample
4.Tabular

CURRENT SYSTEM DESCRIPTION
Determining current system performance will struck a snag if firm have no one performance measurement default system. Too bad, tending firm doesn't update to document walking system. Hence, analyst fix document up to problem investigation system. Current system description covers explanation:
1.inputs
2.outputs
3.files
4.data elements
5.transaction volume and action document
6.data flow diagrams
ANALYSIS NEEDS
Intensive interaction step between system analyst and end user, which system development team showing they are skill to get respond and trust of user, so its get a good participation.
Four objective being reachable :
1.Explain complete system
2.Describe ideal information system
3.Bring the ideal information system to the current situation with consider about resources problem.
4.Give support to user confidence to a system development
Method
1.Asking and reply
2.Questionnaire
3. Observation
4.Analysis procedure
5.Document observation
Resources problem
1.Time
2.Money
3.Skill
4.Technology
5.External factor

Analysis needs document
1.Analysis brief : relation with end user, process monitoring, data collect problem
2.User needs : truly needs, report needs, training needs and new system effect.
3.System problem : explain time and cost problem, skill, technology and external factor.
4.Documents, data collect instrument, statistic consensus, physical and logical data flow, starting data element on data dictionary.


GENERATING SYSTEMS ALTERNATIVES
How to current system condition approaching with condition of system which ideal?
1.Making alternative to solve information system problem
2.That best alternative is applied one expedient
Strategy Selection
1.distributed versus centralized processing
2.Changing information decision from centralized processing's data goes to decentralized end user responsibility center
3.Integrated versus dispersed is database
4.System designer shall regard data any kind ingoing in base's data and one turns in at File
5.Surround Strategy of System Development
6.Environmentally surrounding strategy is of important in term confiscation because information system of other firm may in contrast to corporate currently.

Operational scheme Selection
Scheme selection can be agglomerated into
Input
1.Online Vs Off Line Data Entry
2.Keyed Vs Machine Readable Data Entry
3.Centralized Vs Decentralized Data Entry
Processing
1.Batch Vs Realtime record update
2.Sequential Vs Direct Access to records
3.Single Vs Multiple User update of records
Output
1.Traditional Vs Turn Around Documents
2. Structured Vs Inquiry based reports
SELECTING THE PROPER SYSTEM
The tactics compare : System compared to pursuant to expense and advantage relatively;
There is 3 way of system A told by more pre-eminent with the other system if:
1.A have the lower expense from B and advantage both of equal
2.A have the lower expense from B and A yield the advantage which is more than B
3.A and B have the expense of equal but advantage yielded by A more amount.
Some Method of Komparasi System
1.Break Even point Analyisis
2.Payback Period
3.Discounted Payback period
4.Internal Rate Of Return
Categorize The Expense
1.Hardware
2.Software
3.People
4.Suppliers
5.Teleccommunications
6.Physical Sites
Expense of information system can just be happened once and earn is also happened chronically.
1.Expense of just information system that happened once that is ontime cost and development cost that happened system development moment.
2.Expense of information system that happened continually among other things is reccuring cost and also operational cost of where this expense is happened by the moment of information system operate every day.
Factor Qualitative instructing good information system performance among other things
1.Lessening mistake storey;level
2.Lessening time to improve;repair the mistake
3.Lessening time listen carefully from workstation alternative
4.Quickening ready time of information
5.Improving system security
6.Multiply to update the active source record
7.Improving wearer satisfaction
Factor of Company Strategy
1.Consumer Satisfaction
2.Mount the sale mount the
3.Komitmen of Consumer and vendor
4.product marketing Information
PRESENTING SYSTEM STUDY
1.Conducting presentation in a word
2.Lessening technique clarification in detail
3.Presenting clearly by means of assist visual
4.If using model use the assistive appliance for example laptop so that more informative
5.Emphasizing advantage from proposal of information system with a few existing alternative according to natural by condition of company
DECISION CONTINUE OR DO NOT
1.If company set mind on to develop the system hence information department will conduct the process hereinafter that is Process The Desain System
2.If on the contrary hence System Development Life Cycle ( SDLC) will be discontinued
3.Frequently will be found by problem with the study system and and usually top management will ask conducting of reworking to study system
4.Model will explain the some part of step repeated and sometime information department will make decision to repeat the step of before explaining study system
5.With the alternative, decision to repeat a not to speak of or previous step SDLC of Go – No – Go Decision.
Referensi:Pengamatan Awal, Kebutuhan Analisis; Ngurah Agus Sanjaya ER, S.KOM, M.KOM