High-level design

High-level design (HLD) explains the architecture that would be used for developing a software product. The architecture diagram provides an overview of an entire system, identifying the main components that would be developed for the product and their interfaces. The HLD uses possibly nontechnical to mildly technical terms that should be understandable to the administrators of the system. In contrast, low-level design further exposes the logical detailed design of each of these elements for programmers.

Purpose

In both cases the high-level design should be a complete view of the entire system, breaking it down into smaller parts that are more easily understood. To minimize the maintenance overhead as construction proceeds and the lower-level design is done, it is best that the high-level design is elaborated only to the degree needed to satisfy these needs.

High level

High Level may refer to:

In computing

In geography

Other

See also

High- and low-level

High-level and low-level are typically terms used to classify, describe and point to specific goals of a systematic operation, though its uses also vary depending on the context - such as use in computer science versus business administration. In general, high-level is used to describe operations that are more abstract in nature, where overall goals and systemic features are typically more concerned with the wider, macro system as a whole. Alternatively, a low-level description is one that describes more specific individual components of a systematic operation, focusing on the details of rudimentary micro functions rather than macro, complex processes. Low-level classification is typically more concerned with individual components within the system and how they operate.

Differences and similarities

Due to the nature of complex systems, the high-level description will often be completely different from the low level one. For example, there are features to an ant colony that are not features of any individual ant; features of the human mind that are not known to be descriptive of individual neurons in the brain, features of oceans which are not features of any individual water molecule, and features to a human personality that are not features of any cell in a body. The descriptions of these differ depending at what level they are studied. Features which emerge only at a high level of description are known as epiphenomena.

High Level

High Level is a town in northern Alberta, Canada. It is located at the intersection of the Mackenzie Highway (Highway 35) and Highway 58, approximately 733 kilometres (455 mi) north of Edmonton and 725 kilometres (450 mi) south of Yellowknife, Northwest Territories. It is located within Mackenzie County and was founded in 1947.

History

The name High Level originated from the height of the land that separates the Peace River and the Hay River. The original location was about 3.5 miles north of present spot and along the old Fort Vermilion/Meander River freighting trail, serving as a stopping place, not a town. The original High Level Sports Grounds were at this location and the old trail was still visible there in the mid-1960s. The High Level Golf & Country Club currently occupies this approximate location. For many years, High Level was known as Tloc Moi (Hay Meadow). The first fur traders arrived to this area in 1786, but it was not until 1947 that High Level was settled, with development of road access to Fort Vermilion being the primary factor in determining the Town's present location. High Level's first power plant was established in 1957, and a year later the first post office was built. The oil fields were discovered in the 1960s, and a railway was run to the area in 1963.