{"nodes":{"0w8kl8g0ykzwi8fkj5v87vkrzb3q734m":{"type":"start","x":2.1898938620497868,"y":363.5001613959884,"properties":{"title":"2 Understanding flow edges (may, must, not)","excerpt":"","author":"GraVersal","license":"CC BY 4.0","channel":"chat","category":"Tutorial - Basics","post":"## Flow Edges in GraVersal: How Flows Move from Node to Node\n\n**Edges** connect nodes and shape the actual **flow**. In GraVersal, edges are **directional**, they define what can happen first, and what can happen next.\n\n### The three flow edge types\n\nGraVersal uses three flow edge types to control execution:\n\n- **May-Edges**\n- **Must-Edges**\n- **Not-Edges**\n\n### May-Edges: “This could happen next”\n\nA **May-Edge** is the most common connection. It simply means the next node **could** be executed if the flow reaches it through that edge.\n\nImportant detail: for the **target node**, it doesn’t matter *which* May-Edge activated it. Once the node is reached, it runs.\n\n### Must-Edges: “All conditions must be met”\n\nA **Must-Edge** is stricter: it **must be traversed** to activate the destination node. If there are multiple Must-Edges pointing to the same destination, **every single one** has to be satisfied before the node can launch.\n\nThink of it like a checklist. Only when all required “yes” answers (or required steps) have happened does the flow unlock the next node.\n\n### Not-Edges: “This blocks the destination”\n\nA **Not-Edge** does the opposite of enabling: it **blocks** a destination node as soon as it’s traversed.\n\nThat makes Not-Edges useful for ruling out paths e.g., when a certain answer should prevent a specific suggestion or outcome from appearing.\n\nWith these three flow edge types, you can build flows that are flexible (May), strict (Must), and guarded (Not).","slug":""}},"1gt1u2th6xp440onfnwg8x6abig82ff2":{"type":"message","x":-6.8779554683779995,"y":224.47533202566999,"properties":{"text":"**Edges connect nodes** to each other and thus form the flow.","repeatOnReentry":true}},"7lmonmjqso58ua8d846obpsln9z2np9o":{"type":"message","x":-10.360656546489563,"y":456.01672001080243,"properties":{"text":"The edges in GraVersal are **directional**. This means they have a direction and thus determine what happens first and what happens next.","repeatOnReentry":true}},"1pwez1w2lot5vkmsq07l1q4u6tyg3ih4":{"type":"message","x":-7.411096148789345,"y":710.2312486763462,"properties":{"text":"There are **three different types** of edges that control the flow:\n\n* May-Edges\n* Must-Edges\n* Not-Edges\n","repeatOnReentry":true}},"czstznjbelhv3sgzpyshfdjanabokoqu":{"type":"question","x":-18.9120925254862,"y":1026.062496523481,"properties":{"text":"Which type would you like to learn more about?","repeatOnReentry":true,"reviewable":true}},"cch32b13h1822ft81qcewic6iyqve7iz":{"type":"suggestion","x":-279.4205279795533,"y":1087.336162210201,"properties":{"value":"","label":"May-Edges"}},"ws01oju0wz6nwsh0e0dg80jw3jfj3upd":{"type":"suggestion","x":-21.77955844566321,"y":1215.7033843921479,"properties":{"value":"","label":"Must-Edges"}},"8g8wvdjo24ornirjckn4sz9wezccqzd9":{"type":"suggestion","x":222.41607081825484,"y":1096.655496847513,"properties":{"value":"","label":"Not-Edges"}},"khdbg8oo0c23s5pulqggc2jtwwvlqwu1":{"type":"message","x":-1483.4339772245207,"y":1215.924264309171,"properties":{"text":"This type of edge is probably the **most common**. Simply put, a may-edge indicates that the next node **MAY** be executed if it is reached via this edge.","repeatOnReentry":true}},"9a33sugkxshi71e45zgo88hm58kkkcli":{"type":"conclusion","x":-1209.8499772245204,"y":1048.885264309171,"properties":{"text":"This conclusion forms a parallel path"}},"1hd5phbmjeyi8pgzuxwcmemyitkp73o4":{"type":"conclusion","x":-1135.4949772245204,"y":1223.682264309171,"properties":{"text":"This conclusion forms a parallel path"}},"plrdsaxrzvy6m3jtknbp6xfva8r6y7v4":{"type":"message","x":-1678.6519772245206,"y":991.6002643091708,"properties":{"text":"For the target node, it doesn't matter which May edge ultimately activated it. It will be executed when it is reached.","repeatOnReentry":true}},"r7aegyspv1abd6w857p5kjgrux1rvkrj":{"type":"conclusion","x":-1263.0129772245205,"y":807.6162643091709,"properties":{"text":""}},"yfnxbc592jpf98h5llaj5adhtk1ji0u1":{"type":"message","x":-13.17026494795926,"y":1882.5707707908214,"properties":{"text":"The special thing about a must edge is that it **MUST be traversed** to activate the destination node.","repeatOnReentry":true}},"2btr3qo91lnkwvfkvyp2aa3buxv4grxh":{"type":"message","x":-7.360264947959261,"y":2178.5347707908213,"properties":{"text":"You will be asked two questions below. Answer both with \"yes\" to reach the destination.","repeatOnReentry":true}},"3qd64zfeppjlv0bvjrsefb8kw7yhayof":{"type":"question","x":-311.54226494795927,"y":2498.9627707908217,"properties":{"text":"Do you like GraVersal?","repeatOnReentry":true,"reviewable":true}},"ynb4r8jd4b2h130vndxogwatx5fvi31z":{"type":"question","x":247.58273505204073,"y":2389.0587707908217,"properties":{"text":"Do you really like GraVersal?","repeatOnReentry":true,"reviewable":true}},"8y3195ayoteatrsaq49g9vfp8gq8idkl":{"type":"suggestion","x":-339.06649296508306,"y":2661.322828245755,"properties":{"value":"","label":"yes"}},"fyzeo1bwglvicwfxnf2it2bfrg0ema35":{"type":"suggestion","x":-498.8545186839642,"y":2496.056726478611,"properties":{"value":"","label":"no"}},"57pfpbn06tput7nrr8p12enj05vp7d4p":{"type":"suggestion","x":421.8206182686591,"y":2633.1675580026726,"properties":{"value":"","label":"no"}},"4bw3sw20solki9t42dk6k1qjh09w4rvg":{"type":"suggestion","x":192.37879024344497,"y":2618.1916033418815,"properties":{"value":"","label":"yes"}},"lv6sxlvdbvn9i2us6bh7slx2yjfc88gd":{"type":"message","x":12.524753517458478,"y":3002.8577549803476,"properties":{"text":"Congratulations! As you can see, **every must-edge** must be activated to launch the target node.","repeatOnReentry":true}},"lic4hc3rfzvzoi60zumgsbuwlgllmkbs":{"type":"conclusion","x":-949.6109490322442,"y":2449.9122877595905,"properties":{"text":""}},"90npt2fribeq5kj926t5e0tqn5w7opyo":{"type":"message","x":58.462535174584794,"y":3428.927694852321,"properties":{"text":":-( OK","repeatOnReentry":true}},"rs7t5t5lafmn9dvk0i7amq938b7jqcns":{"type":"message","x":-579.15674406434,"y":2228.7415636602027,"properties":{"text":":-( OK","repeatOnReentry":true}},"deieg8oechtj0bvu1w5nqokkd3eon041":{"type":"message","x":964.1201586219989,"y":1175.190164530567,"properties":{"text":"A **NOT** edge blocks a destination node as soon as it is traversed.\n\nImportant: NOT edges only work if they **reach the node BEFORE** other activating edges! You can set which path reaches a node first using the priority slider in the edges.\n","repeatOnReentry":true}},"upt2t3kjmiaplqal9mgyvovvn5kqsqgr":{"type":"message","x":1359.4870331836273,"y":1184.9240858918424,"properties":{"text":"Look at the possible answers to the following question. I'll **unblock some suggestions** after 15 seconds, revealing even more possible answers.","repeatOnReentry":true}},"91zoxnw8khtnc73hqnhg2tttbjakhjym":{"type":"conclusion","x":1583.4660331836271,"y":1252.4970858918423,"properties":{"text":"lets start"}},"eu72yzjw1fjxrfoqpl8mo9xfqq72wn60":{"type":"question","x":1908.8743394228857,"y":911.1832029496755,"properties":{"text":"What is your favorite animal?\n","repeatOnReentry":true,"reviewable":true}},"5z6zjl2roaxva8vhf76knnfhwt0uyvaa":{"type":"suggestion","x":2073.4233394228854,"y":764.2842029496755,"properties":{"value":"","label":"cat"}},"kctzo0q7s5cvvuqg0fgoqjlwujtwxsam":{"type":"suggestion","x":2157.90383242027,"y":883.3337199827923,"properties":{"value":"","label":"dog"}},"mm0zqv3qbnfwg2oe4j6l4s7mlc0o21s2":{"type":"suggestion","x":1985.9403394228857,"y":1057.6442029496754,"properties":{"value":"","label":"monkey"}},"0rf41lrgtys90xc154wqp8te726iu399":{"type":"suggestion","x":2129.2303394228857,"y":993.0872029496757,"properties":{"value":"","label":"penguin"}},"y7zu4f3igy0w84cnqa5vkx8b8vf9unod":{"type":"timer","x":1857.6168169509162,"y":1702.4242497961577,"properties":{"seconds":"15","repeatOnReentry":true}},"tv79va2c1u1h9a1omppulsp0aq5mpq4l":{"type":"message","x":2189.6097512258602,"y":1622.582605007161,"properties":{"text":"Looks like you need more suggestions!","repeatOnReentry":true}},"sqg7ncaulgjuquou454tyrjat5rjnmri":{"type":"conclusion","x":2127.0513265229806,"y":1322.5754026241916,"properties":{"text":""}},"6ylgnnpsvwateadli7x9fwifky70skqj":{"type":"conclusion","x":1732.365033183627,"y":1382.9900858918425,"properties":{"text":""}},"p078gef7pcetm1y3peelh21aihh1lz3b":{"type":"comment","x":2287.515626781489,"y":1299.3953399482982,"properties":{"text":"Yes :-) We're using a Not Edge here to block the node that would trigger other Not Edges. This is just an example. Actually, you could have built this more simply ;-)"}},"8y9alwcpndqd3y6f6ktmadeoyj4yybm5":{"type":"message","x":1346.1454282630516,"y":743.628467871112,"properties":{"text":"This is a great animal","repeatOnReentry":true}},"m06l7zlu9ubf686r5fsh5xfmck759ga3":{"type":"jump","x":368.123825796502,"y":709.6123002935136,"properties":{"label":"Back to tutorial 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