blockchain for operational decision making

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Review five sources on information systems supporting operational decisions in Blockchain. Each of the five reviews should be at least 250 words.

Summarize the five sources by comparing and contrasting their main points in 250 words or less. Do not copy and paste parts of the source into your review. Do not quote the source in your review. You should be able to read the source until you understand it, then write about it without looking back at the source. No plagiarism. In the summary section, cite the sources as you discuss them.

Provide an APA style reference for each source. Sources may be from periodicals, white papers, academic journals, or videos.

Use Times Roman 12pt font, double-spaced, with one inch margins.