Overview of all diagrams after moving elicited model elements out of the '0-source' zone

Let's start with the left column of the composite image. There is a top-level index Package Diagram. All elicited model elements are now within a Model or Package (it does not matter which one you use) under that top-level.

There is a top-level Model common with some shared elements; since we are not going to model Instrument in detail yet it lives there for now.

The ValueType elements have been collected in value. Since Detector, Lens and Mirror are important for our domain they get dedicated Model packages, and em collects elements to do with electromagnetism.

The telescope Model package already has a sub-model optical, and they have initial Package Diagrams.

In the right column of the composite image we see everything to do with the «document» sources that supply text extracts for «snippet» ElementGroups, and the «pa» Parsing Analysis diagrams.

Webel Parsing Analysis: Create a top-level 'source' or '0-source' Package/Model SEPARATE from your project model. All source «document» elements and «snippet» extracts and «pa» diagrams MUST be ultimately owned by that top-level Package/Model as ancestor!

TIP: If you use the name '0-source' instead of 'source' for the top-level Package/Model for containing Parsing Analysis elements it will list nicely at the top of the containment tree.

Think of the entire project being driven by the «snippet» sources; model elements are elicited in that source zone then flow out (are moved out) of the source zone into the main project area.

It helps in Package Diagrams and BDDs to use the display option to show the owner of each main element in the symbol header to check that each elicited element now has somewhere to live (i.e. that it has not inadvertently been left in the source zone).

Webel Best Practice: In Package Diagrams and Block Definition Diagrams use the owner indicator display option for Classifier symbol headers to indicate the owner (except where a containment operator suffices). The mode 'Below Element Name' is preferred.

Don't fuss too much about the initial packaging! In the Webel approach, we prefer "logical" over "physical" modelling and can keep the ownership loose, especially early on in a project.

Up next

The first known practical telescopes were refracting telescopes

Notes

[ASSERTION]{STRICT} In Webel Parsing Analysis elicited model elements MUST eventually be moved out of the 'source' (or '0-source') Package/Model zone and under a main project Package/Model area. (Use the owner display option to check.)

[POLICY]{STRICT} Webel Parsing Analysis: Create a top-level 'source' or '0-source' Package/Model SEPARATE from your project model. All source «document» elements and «snippet» extracts and «pa» diagrams MUST be ultimately owned by that top-level Package/Model as ancestor!

[DISPLAY, STYLE, TOOL]{RECOMMENDED} In Package Diagrams and Block Definition Diagrams use the owner indicator display option for Classifier symbol headers to indicate the owner (except where a containment operator suffices). The mode 'Below Element Name' is preferred.

[] Prefer owner path indicators over Package containment operators (which are fragile).

Snippets (quotes/extracts)

A telescope is an optical instrument using lenses, curved mirrors [DISPUTED], or a combination of both to observe distant objects ...

The word telescope now refers to a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors.