Project Requirements

Table 4.3 contains a list of all essential requirements for Online Photo Shop. This list was generated from an XML document, as described in section 4.2.2.

Table 4.3. Requirements Descriptions

Requirement	Type	Summary
F:order_products	Functional	Ordering products via an Internet site shall be provided. A product catalog is provided as an XML document.
F:products_browse	Functional	Customers shall be able to browse through the products catalog, which is provided in the form of formatted HTML documents.
F:product_options	Functional	Customers shall be able to choose between options offered for a particular product.
F:product_customize	Functional	Customers shall be able to customize a product with personal digital photos.
F:product_shopping_cart	Functional	Customers shall be able to add products to a shopping cart while browsing through the product catalog.
F:order_checkout	Functional	At any point while browsing through the product catalog, customers shall be able to proceed to checkout and finalize the order.
F:checkout_shipping	Functional	During checkout, shipping information needs to be collected.
C:checkout_shipping_cont	Constraint	Shipping is possible to U.S. customers only.
F:checkout_payment	Functional	During checkout, payment information needs to be collected.
C:checkout_payment_method	Constraint	Payment is possible by credit or debit card only. A separate billing address shall not be collected (must match shipping address).
R:checkout_payment_secure	Risk	Payment information shall be transmitted in a secure fashion.
F:checkout_summarize	Functional	For each completed order, the entire order information shall be transferred to order processing.
F:error_handling	Functional	Exception-handling mechanism needs extension to show error message in window on screen.
F:photo_editor	Functional	Customers shall be able to perform basic photo postprocessing on their digital photos.
F:image_crop	Functional	The photo editor shall provide functionality to select a region of interest and crop the image to that region.
F:image_brightness	Functional	The photo editor shall provide manual brightness correction.
F:image_contrast	Functional	The photo editor shall provide manual contrast correction.
F:image_color	Functional	The photo editor shall provide manual color adjustment for red/green/blue and hue/saturation/luminance.
F:image_graphics_annotations	Functional	The photo editor shall provide the possibility to attach customized graphical objects to the image.
F:image_graphics_special_effects	Functional	It shall be possible to use advanced graphical objects that use graded or opaque colors.
F:image_text_annotations	Functional	The photo editor shall provide a tool that allows adding text in different fonts and colors to an image.
F:image_3dtext	Functional	The photo editor shall allow the user to add three-dimensional text to an image.
P:editor_optimizations	Performance	The photo editor shall use optimization features such as multithreading to achieve better performance.
F:image_rotate	Functional	The photo editor shall be able to rotate an image by 90 degrees.
F:image_flip	Functional	The photo editor shall be able to flip an image vertically and horizontally.
F:image_special_effects	Functional	The photo editor shall provide special effects for image transformations.
F:editor_system_test	Functional	A test program shall show that the functionalities implemented fulfill the requirements.
F:image_format	Functional	The supported image formats are JPG and GIF. The supported image sizes range from 100 pixels to 2,048 pixels for both width and height.
C:online_shop_codebehind	Constraint	Web forms shall be created using the Visual Studio Web Form wizard and follow separation of code and design (code behind).
C:online_shop_stateservice	Constraint	To allow for future scalability, the ASP State service shall be used to implement session management.
C:imageprocessing_library	Constraint	All implementations of image-processing algorithms that go beyond the provided functionality of the .NET Framework Class Library shall be encapsulated into a separate library.
C:platform_os	Constraint	The target platform operating system is Windows XP Professional.