Assignment 2 – Spatial Data Management
Submission Date:
Monday 23th April 2018
Submission Method:
§ Paper copy to be submitted to the Departmental Office.
§ Digital copy to be submitted via Turnitin (as a zip file, including the document and SQL scripts)
This assignment has two parts: you are required to implement the system you designed in the first part of the assignment, as well as to carry out a small piece of research into NoSQL databases OR to carry out research into 3D functionality in GIS.
This assignment is worth 60% of the marks for the module. 30% of the marks for this assignment are allocated to the research project (3D or NoSQL), and 70% to the physical database creation and query process.
Notes:
– An assignment is an independent piece of work
– If you have questions about this assignment please post them on Moodle:
– That way everyone is given the same information
– That way I remember what I’ve said to you and don’t mark you down for doing something that I wasn’t expected
– Any questions should be generic – as this is an assessment which will gauge how much you’ve learned during the module I won’t be able to solve very specific assignment-related problems for you.
Database Design and Creation
BE SURE TO CLEARLY STATE YOUR USER NUMBER IN YOUR ASSIGNMENT SO THAT I CAN TEST YOUR QUERIES
Your answer should be structured according to the guidance below – failure to do this will result in lost marks – you should include a clear table of contents showing the page number for each of the required sections
Part A –Database Creation
For this part of the assignment:
a. Take the conceptual database diagram you created for the previous assignment and transform it into a logical model, presenting this model as a second UML diagram1.
b. Once you have the logical model, you should then write SQL scripts to create your tables and add the required constraints. The SQL scripts should be created MANUALLY and submitted as part of the assignment, and you must use the PostGIS database provided for this work.
c. Once you have created the tables, populate each table with a minimum of THREE rows of data (you MUST use SQL to do this manually – you are not permitted to import the data from other sources). The data should be sufficient to allow you to test out the SQL for your listed functional requirements.
d. Create and test the SQL statements for each of your functional requirements.
You are required to hand in a report showing2:
1. Your conceptual UML diagram from Assignment 1 (make sure to copy the diagram exactly as you submitted it).
2. The logical UML diagram derived from the conceptual diagram. Make sure this diagram is derived directly from the conceptual diagram you presented.
3. The SQL scripts you used to create and populate the tables (the tables and data should also be created inside your PostgreSQL work area)
1 NB: Do not introduce any new entities or fields into the logical diagram, apart from those specifically required by the translation process.
2 Note – there is no need to write any text to explain the different elements this report – just
be sure that you stick EXACTLY to what is asked for.
· For each table, you should include the entity on which it is based alongside the SQL script that you used to create the table and any constraints. This should be done in a table as follows:
|
Entity Name |
CREATE TABLE SCRIPT |
PRIMARY KEY CONSTRAINT |
FOREIGN KEY CONSTRAINTS |
UNIQUE CONSTRAINTS |
|
(From the logical diagram) |
SQL |
SQL |
SQL |
SQL |
4. The SQL showing the INSERT statements for each table, presented as a table as shown here:
|
TABLE NAME |
SQL INSERT STATEMENTS |
5. A map (created in QGIS) of any spatial data you have as part of this exercise.
6. A 3D screen shot (from FME) of your 3D data, with appropriate background mapping.
7. A table showing the list of Functional Requirements from Assignment 1 (unchanged) and the SQL you used to answer each requirement, structured as follows:
|
Require- ment # |
Requirement Description |
List of Table(s) Involved |
SPATIAL |
JOIN |
SQL QUERY |
Screenshot of results from PG Admin |
|
NB: The text here should be identical to that in Assignment 1 |
These should correspond to the entities listed in Assignment 1 |
Yes/No (identical to Assignment 1) |
Yes/No (Identical to Assignment 1) |
The SQL Query required to answer the requirement |
If the SQL failed insert the error message. If you were unable to meet the requirement, leave blank. |
|
|
TOTALS |
Remember that 3 join queries and 5 spatial queries are required.
NB: All SQL should be included in the report, but also uploaded as a separate single text file so that the database creation process can be re-run from scratch.
For Part A you will be assessed on your ability to create a database using all the principles we covered in class over the course of this module and on how well that database fits your original specification from Part 1 and answers the functional requirements you set out.
Part B Option 1 – 3D GIS Support in GIS Software Packages
Write a short research piece (750 words) describing the support offered by ONE commercial GIS package (e.g. MapInfo Professional or Geomedia 3D) for 3D functionality. You should not use ArcGIS or ESRI products for this assignment. You should make use of the literature available for the software and compare the functionality on offer to that which would be expected from a 2D GIS.
Part B Option 2 – Support for Spatial Functionality in NoSQL Databases
Write a short research piece (750 words) describing the support offered by ONE NoSQL database for spatial functionality. You should not use MongoDB for this assignment (as we have covered this in class). You should make use of the literature available for the software and compare the functionality on offer to that which would be expected from a spatially enabled relational database.
Part B Option 3 – Use of Spatial Databases in Asset Management Write a short research piece (750 words) describing existing and potential uses of spatial databases within an Asset Management context. Your answer should reference appropriate literature (journal articles citing case studies, articles written by professional bodies regarding best practice in asset management, published case studies) and clearly articulate how additional use of such databases could enhance digital innovation in asset management practice.
Examples of issues you may wish to consider include (but are not limited to): emerging Building Information Modelling techniques and trends in your answer and how spatial databases would fit in this context; data protection issues such as the emerging General Data Protection Regulation – how can databases and spatial databases help meet the requirements of this regulation?
For Part B, you will be assessed on the clarity of your writing, appropriate use of referencing as well as your ability to understand and document support offered by your chosen software package.
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