Wednesday, 8 February 2017

DATA FLOW DIAGRAM FOR MAZIMBU WEATHER RECORDING SYSTEM


SOKOINE UNIVERSITY OF AGRICULTURE
FACULTY OF SCIENCE
DEPARTMENT OF INFORMATICS
DEGREE PROGRAMME: Bsc. EDUCATION (IM) AND BSC.INFORMATICS
COURSE NAME: INFORMATION SYSTEM DESIGN & ANALYSIS
COURSE CODE:       INF 300

PARTICIPANTS

STUDENT NAME
REG.NO
SIGNATURE
MCHWAMPAKA JOVINA B
INF/D/2014/0026

LUKYAA WITNESS
EIM/D/2014/0066

MWIGEKA OSCAR PETER
INF/D/2014/0004

OUDU FRANK
EIM/D/2014/0078


USER REQUIREMENTS
Agriculture
Mazimbu Weather stations provide information to users, for example in agricultural activities information can include harvesting time where by the farmer need to know weather condition to know the harvest time also in farm planning a farmer need to know weather condition to plan for farming at the right season. And also in livestock keeping a livestock keeper needs to know the right season for rearing their animals.
SUA staff
Here SUA staff collect Meteorological data from mazimbu weather station that they use in different training of students and other people in need.
Broadcasting stations (TV)
These include televison stations and they require weather forecasting information from mazimbu weather station to help them in maintaining their radio frequencies as they become affected by lightning and rainfall.
Tanzania Meteorological Agency(TMA)
Here  the overall weather stations are handled and it provides some instruments to mazimbu weather station.
Students
Here the students take some training information from the station and use them in conducting projects and after the project they tend to leave the instruments to the station.

  
FEASIBILITY REPORT FOR MAZIMBU WEATHERING RECORDING SYSTEM .

BACKGROUND
          Mazimbu Weather station recording system is situated at Sokoine University Of Agriculture in   Morogoro registered by 9637095 in which 963 is the block number for all East African weather station and 7095 is the station number for Mazimbu weather station which depends on resources from Tanzania Meteorological Agency. The current Mazimbu weather system is synoptic weather station which includes both conversion weather station and an automation weather station. The system proposed at Mazimbu weather  station is Automation weather station which will make changes of the conversional weather station system and modify the existing automation weather station system. Since the conversional weather system involves the station manager’s presence to measure manually the data from weather station which is time consuming and data loss, that means the station manager should be present at any time that the weather changes. In case the station manager is not around during any weather change for instance it is raining or too sunny then there is no possibility of obtaining data. “when am not around data from synoptic weather station cannot be recorded “According to Mr.Vitalis in charge at mazimbu weather station.
CURRENT SYSTEM
The Mazimbu Weather station is under Mr.Vitalis and his assistant Mr.Mateleka who are in charge of controlling, managing, recording, writing weather forecasting reports and providing weather information to companies and individuals who are in need of that information. The current weather system that is being used at Mazimbu is synoptic which is both conversional and automation weather stations. In which  synoptic weather stations are instruments which collect meteorological information at standard times. The common instruments of measure are anemometer, wind vane, pressure sensor, air temperature, humidity, and rain-gauge. In using conversional weather station, a station manager of Mazimbu(Mr.Vitalis) and his assistant Mr.Mateleka measures  and records the weather information manually. While the automation weather station is the type of weather station that gather high-quality, real-time data that is used in a variety of weather observation activities. In this type of weather station the station manager Mazimbu(Mr.Vitalis) his assistant Mr.Mateleka do not measure weather information manually but, they  record the data directly from Mazimbu weather station instruments at real times. So Mazimbu weather station collects weather information from both synoptic and automatic weather stations.


 PROPOSED SYSTEM
The proposed system at Mazimbu weather station is automation weather station that will change  the Mazimbu synoptic weather station by replacing conversional weather station to automation weather station and modifying the existing automation weather station and the records should be computerized. Through provision of  more weather recording instruments and other necessary requirements such as experts will ensure complete change of conversional weather station to automation weather station and modifying the existing automation weather station. The proposed system will solve the problem of time consuming since the automation system will not need the station manager to take measurements manually and data loss since automation does not require paper records.
METHODOLOGY
The methods used  in collecting data for this case study was face to face in which group members together went to Mr.Vitalis in charge of  Mazimbu weather station and had a couple of questions to ask concerning weather requirements of the user. From this method of data collection me and my group members obtained the information we needed for the establishment of automation weather recording system.

COST AND BENEFITS
The proposed automation weather system requires a small area of (60*40)meters which needs just a little amount of money for being constructed.  Also measuring instruments are not replaced  time to time since they are long lasting. Therefore this system does not meet repair costs. In providing the weather forecasting data, Mazimbu weather system requires little funding and provide enough required information.


 CONCLUSION
Generally, Mazimbu synoptic weather station will be replaced by automation weather station which will assist the mazimbu in charge weather Mr.Vitalis in easy record and storage of weather forecasting information. As this computerize automation system will store data in  secured and long term memory that as it was kept in papers and files.


RECOMMENDATION
The automation weather system that we have proposed will be time effective since the weather data will be recorded automatically and also data will be computerized and converted automatically thus time is less in automation weather station than conversional weather station.

CONTEXT DIAGRAM MAZIMBU WEATHER RECORDING SYSTEM


 LEVEL 0 DIAGRAM MAZIMBU WEATHER RECORDING SYSTEM





 DFD LEVEL 1 PROCESS 1

DFD LEVEL 1 PROCESS 2




  
DFD LEVEL 1 PROCESS 3






DFD LEVEL 1 PROCESS 4



ENTITY RELATIONSHIP DIAGRAM FOR MAZIMBU WEATHER RECORDING SYSTEM


DATA RELATIONSHIP DIAGRAM  FOR MAZIMBU WEATHER RECORDING SYSTEM

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