Clarify economic dimensions

[hoch4]

Among others, the learning goal lists these economic dimensions:

Investment and operating expenses (OPEX), Run-the-Company (RTC) and Develop-the-Company (DTC)

Improvements

• Also add the acronym for Capital (Investment) Expenses: CapEx
• Rename „Investment Expense“ to „Capital Expense" so that it matches the definition of SAFe.
• Add this reference for CAPEX and OPEX. e.g. https://www.scaledagileframework.com/capex-and-opex/
• Add a reference for Run-the-Compoany (RTC) and Develop-theCompany (DTC). It's hard to find information about these two names on the Internet. Where thy come from? There should be a reference. Is RTC just another name for Operating Expense (dt. Betriebskosen) and DTC for Capital Expense (dt. Investitionskosten)?

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page:03-module-block-3/LZ-3-01.adoc

[feststelltaste]

• adressed the OPEX/CAPEX topic
• removed RTC and DTC and switch to "plan build run" budget type in 67abb6d
• also removed those terms in the terms section to more common one